ok what is your dogs favorite "not supposed to have" thing to shred ?
Bella is driving me nuts she shreds everything but her favorite is

underwear any kind clean or dirty male or female doesnt matter she will get in a partially open drawer, the laundry basket, the top of the dresser or just about anywhere she can to get undies she even shreded a pair of jeans to get the undies I hid in the pocket before I put them in the laundry hamper
I used to own at least 15 pairs of undies and my daugher owned at least 20 and my OH had at least 15 as of today I own 2 yes 2 pairs my daughter is down to 5 and my OH is down to 3 pairs of boxers no boxer briefs left at all yes we are headed to the store to restock today! so far the only thing she hasnt gotten open is a plastic box with a hard lid on it so I purchased 3 of them a few weeks ago and wouldnt you guess I forgot to put the lid on when I put laundry away last night and I woke up to 5 pairs of shredded undies !!
does anybody else have a dog with a undie fettish? or is she as weird as I think she is ?

paper towels. made the mistake of leaving them where she could reach them (she's growing so fast I didn't realize she could reach the counter!) I left her home alone for an hour and the entire roll was shredded on the kitchen floor.

For years willow would shred everything paper, she even shredded a few dollars before I could get them. Her second fav thing was anything terry cloth, towels, wash rags. her third fav thing was Dryer sheets. I don't get it but she finally outgrew the habit but Dixie has picked up the habit, she will go thru a freshly dried bunch of clothes and have that joker fished out before I can blink! And then shred it like crazy and it is hell getting it from her before she eats it. she also has a love for tissue paper. We have lost about 10 rolls of tissue paper in the last 9 months. Dang, that's about 8 bucks.

My Boxer loves to shred paper... LOL. We always call him a goat because if he can reach the paper, it's fair game!!!

My Shepherd has never been a chewer but if she has an upset stomach and needs to potty while I'm not home, she'll shred the blinds trying to get out the window. That's why my windows are always very firmly locked!!